岩溶生态系统是一个比较脆弱的生态系统。在分析典型岩溶生态系统土壤微生物类型和数量、土壤酶活性、植物群落组成与结构及其多样性的基础上，从生态恢复的生物途径角度，提出可用土壤微生物、土壤酶、植物群落组成与结构及其多样性等主要生物学微观与宏观指标来科学评价西南岩溶生态系统的脆弱性。同时，针对西南脆弱的岩溶生态系统特点，提出了相应治理的生物技术措施。
Bio lo gic al Dia gnosis of Karst Ecosystem Frag ility and Bio technolo gic al
M anagem ent M easures in South w est Chin a
YU Long- jia ng ， LI W ei ， LI Mao- te ng ， LI Tao
（ Schoolof Life Science and Technology ， Huazhong University of Science and Technolog y， Wuhan 430074 ， China ）
The karst ecosystem isa fragile ecosystem . Ba sed on the analysis of the type and number of soil microorganisms ， activities of soil enzymes ， and plant com m unity structure and its diversi ty in typical karst ecosys-tems ， the m ain biologically m icrocosm ic and m acros copical indexes ， such as soil microorganisms ， soilenzymes ，plant com m unity structure and its diversity ， are putforward in the lightofbiologicalappr oach ofecologicalrestora-tion to evaluate scientifically the fragilit y ofkarst ecosystem of Southwest China. Moreo ver ， som e reasonable m eas-ures on the harnessing ofkarst eco- environm e ntwere putforward based on the characteristi cs offragile karst ecosys-
tem in Southwest China.
甘公网安备62010202000687
